Locking device



Aug. 25, 1931. w, E 1,820,715

LOCKING DEVICE Filed ril 2. 1928 2 Sheets-Sheet x Aug. 25. 1931.

LOCKING DEVICE Filed April 2. 1928 v W; NJVANCE "2 Sheets-Sheet 2 Patented Aug. 25, 1931 conromrxon or rumors, V

A aicaaormea April 2, ms. Serial No. 286,595.

This invention. relates general to latch on looking devicesxfor sheet. metal lockers and: thelike,. and; has more particular referenceto the provision of anew and; improved latchzconstruction ofthe automatic character wherein the mere closing OfithGdOOI" results inzthe locking of the locker 'orother compartment. 7 i I The principal: object of; the invention is the provision of a.. latching and locking mecha- "nism. adapted to operate automatically upon the mere, closing-ofthe door, which willv be more silentrin. its action than constructions hemtoforergenerally employed;

Another ixnportantv object of the invention ist-heprovision .ofa construction, of the character-set forth, whichwill require the mere turning-of. the keyand a light pull upon the key itseliirtoo en the door.

A further db ject'of the invention. is the provision of a-device of the character described, the parts of t'he latchingdeviccsfof Which Will be so constructed and arranged that when: th'elock is moved to release position they tend to disengage and start the door in its opening movement.

Another object of the invention is the provision of a structure .possessing these and other advantages, which while capable of valuable use in other constructions, particularly adapts itself to incorporation in coat and other lockers constructed largely or entirely of sheet metal.

Numerous other objects and advantages of the invention will be apparent from the following description, which,taken in connection with the accompanying drawings, discloses a preferred embodiment thereof.-

Referring to the drawings,

Figure 1 is a rear elevation of a door and door frame, the locking and latching devices being shown in locked position;

Figs. 2 and 3 are sections taken substantially upon the line 22 of Fig. 1,showing the parts in locked and unlocked relation and on somewhat enlarged scale; 7

Figs. 4 and 5 are enlarged partial details of the latching mechanism,'the views being taken similarly to Fig. 1;

Figs 6, 7 8 and 9 are sections taken respectively on the lines 6-6, 9-9of- Fig.".4'..

wh n n.. v mcn, onciiuohqo, iinmnrrs, iLLINOIS,,ASSIGNOR, BY rrnsnn 'nssrem- Mums, TO::LYON.METAL, rnonucma; lnconronatrnnqor. AURORA, ILLINOIS, A

' gtocxme DEVICE" I For the purpose of illustrating mypresent invention, 1 have shown on the drawings a lockeradoor member 11 pivotally mounted at s 12in a door framememberlii, which may be takento constitute the front of a sheet metal locker. v In the present'instance, the door framelis constructed in a usual and wellknown manner, flanges 14 being arranged to form the outer face of the frame about the door opening, The door is preferabl y of sheetzmetaland is provided with an lnturned flange ISeXtending about its periphery.

,The locking device comprises, in general,

' .16 is provided with projections 21 at'its ends,

7-7,. 8-8 and these projections being flat and arranged to extend away from theflange 15 and :at an angle to the longitudinalaxis of the slide.

The slide is mounted upou the flangelfi and to move vertically with respect thereto as an incident to the openlng and closing'of the door. It is held in place upon thefla'nge 15 by lugs 22 struck up. from the material of the flange and having enlarged heads 23 ar ranged through slots 24 in the slide16'. The particular construction and arrangement of the lugs 22 and slots 24 forms no part of the present invention, and a' more particular description of them will not, therefore, be undertaken.

Theslide engaging keepers 17 areof strip metal material and are spotwelde'd' or otherwise secured at '25 to the inner face ofthe flange 14.01: the anglefraineamember. Each keeper 17 is bent at26 to extendback.in-paraL that as the door is closed the lugs 21 engage the material of the keepers beneath the slots 31, the material above the slots being cut away at 32. Thus constructed, a. lip or lug 33 is presented in the path of inward movement of each lug 21, causing the lug to ride up the lower inclined surface 34 of the slot from the position shown in Fig. 3 to that shown in Fig. 2. This movement results in the bodily lifting of the slide and arranges the parts in interlocked relation, the lugs 21 being then disposed behind the parts 35 of the keepers above the slots.

The lock 19 is preferably of the spring lock type and is secured upon the door at 41, with its barrel 42 which receives the key arranged through the usual barrel opening of the door. Slide 16 is provided with an offset part 43 adjacent the bolt 44 of the lock, and this offset part provided with an opening 45 through which the bolt is projected when the'slide is raised into the locked position shown in either Fig. 2 or Fig. 4. The lock, therefore, holds the slide in upper position with the keepers 17 and the slide interengaged. The keeper 18 which is provided at the lock and secured upon the frame angle flange 14 at 46 is of the general shape of a keeper 17, except that its loop portion narrower and embraces merely the flange 15 of the door, extending between this flange and the offset portion 43 of the slide. The keeper itself is provided with a slot 47 into which the bolt 44 extends when in locked position, as may be seen in Fig. 8. The bolt of the lock, therefore, engages both the slide 16 and the keeper 18.

It will be manifest that in locking the door the lugs 21 and the keepers 17 engage in merely sliding contact and the parts are moved quietly into final relation, producing a latch of peculiarly silent action. The door is held against outward opening movement at the three keepers and at these same points is restrained against separation from the frame in the plane of the door to prevent springing of the lock.

The material of the slide or bar 16 is preferably curved transversely throughout portions of its length at 51 to stiffen it and insure rigidity.

It will be manifest that in opening the locker the weight of the slide 16 tends to move the lugs 21 down and out of the slots 31 in turn tending to open the door, so that assuming the slots to have a rather sharp angularity little or no pull is required to start the door on its opening movement. It will be manifest moreover that no outside manipulation other than the turning of the key is necessary to disengage the latching device, and that no spirit and scope of the invention or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim:

1. The combination with a locker, a door for said locker, and a door lframe on said locker in which said door is pivotally mounted, of a bar mounted'in' vertical position on said door and having parts angularly arranged with respect to the door edge, keepers arranged on the door frame inside of said locker and having angularly arranged slots for receiving the angularly disposed portions of said bar, closing of the door causing the angularly arranged parts of the bar tomove through the angular slots of said keepers and into interengagii'ig relation therewith.

2. The combination of a door, a door frame in which said door is pivotally mounted, a bar mounted in vertical position 011 said door and having partsangularly arrangedwith respect to the door edge, keepers arranged on the door frame and having angularly arranged slots for receiving the angularly disposed parts of said bar, closing of the door causing the angularly arranged parts of the bar to move through the angular slots ofsaid keepers and into locked relation therewith, and a locking device engaging said bar for keeping said anguilarly disposed parts in said slots and in locked'relation.

WALTER N. VANCE.

outside manipulation at all is necessary to the closing and latching of the door, the door being merely pushed shut.

The present invention has the claims there- 

